:root{
  --paper:#F4EFE4; --paper-2:#EBE4D4; --card:#FBF8F1;
  --ink:#1C1A17; --ink-2:#4A453D; --ink-3:#6F685D;
  --rule:#D6CDBA; --accent:#7A1F2B; --accent-soft:#E9D6D2;
  --mark:#E7D9A8; --ok:#2F5D3A; --danger:#9B1C1C; --danger-soft:#F6DCDC;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
  --gutter:clamp(1rem,4vw,3rem);
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#16140F; --paper-2:#1F1C16; --card:#1C1A14;
    --ink:#EDE6D6; --ink-2:#BDB4A2; --ink-3:#9A917F;
    --rule:#36312A; --accent:#E08A8F; --accent-soft:#3A2224;
    --mark:#4A4122; --ok:#8FC79B; --danger:#F19999; --danger-soft:#3B1F1F;
  }
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:clamp(1.02rem,.98rem + .2vw,1.12rem);line-height:1.55;overflow-x:hidden;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
a{color:inherit}
[hidden]{display:none!important}

.masthead{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.9rem var(--gutter);border-bottom:1px solid var(--rule);font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink-2)}
.brand-mark{display:grid;place-items:center;width:1.7rem;height:1.7rem;background:var(--ink);color:var(--paper);font-family:var(--serif);font-style:italic;font-size:1.1rem;letter-spacing:0;text-transform:none}
.link-btn{font:inherit;letter-spacing:inherit;text-transform:inherit;background:none;border:0;color:var(--ink-3);cursor:pointer;padding:.3rem 0;border-bottom:1px solid transparent}
.link-btn:hover{color:var(--accent);border-color:var(--accent)}
.logout{margin:0}

.kicker{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 .8rem}
h1{font-size:clamp(2rem,1.2rem + 3.6vw,3.6rem);line-height:1;font-weight:500;letter-spacing:-.02em;margin:0}
h1 em{font-style:italic;font-weight:400;color:var(--accent)}
.lede{font-style:italic;color:var(--ink-2);font-size:1.15em;margin:.9rem 0 1.6rem;max-width:40ch}

/* Narrow pages (login / setup) */
.narrow{width:100%;max-width:34rem;margin:0 auto;padding:clamp(2.5rem,7vw,5rem) var(--gutter)}
.card{background:var(--card);border:1px solid var(--rule);padding:clamp(1.1rem,3vw,1.75rem);box-shadow:6px 6px 0 -1px var(--paper-2),6px 6px 0 0 var(--rule)}
.form-stack{display:grid;gap:1.1rem}

.field{display:grid;gap:.35rem}
.field>span{font-weight:600;font-size:.98rem}
.field small,.field>span small{font-weight:400;color:var(--ink-3);font-size:.85rem}
input,select,textarea{font:inherit;font-size:1rem;color:var(--ink);background:var(--paper);border:1px solid var(--rule);border-radius:2px;padding:.65rem .75rem;width:100%;transition:border-color .2s,box-shadow .2s}
textarea{resize:vertical;line-height:1.5}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,12rem),1fr));gap:1rem}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--mono);font-size:.78rem;letter-spacing:.07em;text-transform:uppercase;padding:.85rem 1.25rem;border:1px solid var(--ink);border-radius:2px;background:transparent;color:var(--ink);cursor:pointer;text-decoration:none;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .2s,color .2s}
.btn-solid{background:var(--ink);color:var(--paper)}
.btn-solid:hover:not(:disabled){transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--accent)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn:disabled{opacity:.55;cursor:progress}
.btn-small{padding:.45rem .7rem;font-size:.7rem}
.btn-small:hover{background:var(--ink);color:var(--paper)}

.alert{padding:.8rem 1rem;border-left:3px solid var(--danger);background:var(--danger-soft);margin:0 0 1rem}

/* App */
.app{max-width:92rem;margin:0 auto;width:100%;padding:clamp(1.5rem,4vw,3rem) var(--gutter) 3rem}
.app-intro{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:1rem;margin-bottom:clamp(1.25rem,3vw,2rem);border-bottom:2px solid var(--ink);padding-bottom:1.25rem}
.app-intro .kicker{width:100%;margin-bottom:.2rem}
.usage{font-family:var(--mono);font-size:.75rem;color:var(--ink-3);margin:0}
.usage b{color:var(--ink)}

.workspace{display:grid;grid-template-columns:minmax(0,1fr);gap:clamp(1.25rem,3vw,2.5rem)}
@media (min-width:1080px){.workspace{grid-template-columns:minmax(0,26rem) minmax(0,1fr)}}
@media (min-width:1300px){.workspace{grid-template-columns:minmax(0,30rem) minmax(0,1fr)}}
.panel{min-width:0}
.panel-input{display:grid;gap:1.1rem;align-content:start}
.panel-title{display:flex;align-items:baseline;gap:.6rem;font-size:1.35rem;font-weight:500;margin:.4rem 0 0}
.panel-title span{font-family:var(--mono);font-size:.72rem;color:var(--accent)}

.dropzone{position:relative;border:1.5px dashed var(--ink-3);background:var(--card);padding:1.4rem 1rem;text-align:center;transition:border-color .2s,background .2s}
.dropzone p{margin:0 0 .3rem}
.dropzone small{color:var(--ink-3);font-size:.85rem}
.dropzone input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.dropzone.drag,.dropzone:focus-within{border-color:var(--accent);background:var(--accent-soft)}
.fake-link{color:var(--accent);text-decoration:underline}
.file-list{list-style:none;margin:-.4rem 0 0;padding:0;display:grid;gap:.35rem}
.file-list li{display:flex;align-items:center;justify-content:space-between;gap:.75rem;background:var(--paper-2);padding:.45rem .7rem;font-family:var(--mono);font-size:.78rem}
.file-list li span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-list button{background:none;border:0;color:var(--ink-3);cursor:pointer;font-size:1.1rem;line-height:1;padding:.1rem .3rem}
.file-list button:hover{color:var(--danger)}

.modes-pick{border:0;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,9.5rem),1fr));gap:.5rem}
.modes-pick legend{font-weight:600;margin-bottom:.45rem;padding:0}
.mode-chip{position:relative;cursor:pointer}
.mode-chip input{position:absolute;opacity:0;pointer-events:none}
.mode-chip span{display:flex;align-items:center;gap:.5rem;border:1px solid var(--rule);background:var(--card);padding:.55rem .65rem;font-size:.92rem;line-height:1.2;height:100%;transition:border-color .2s,background .2s,transform .2s var(--ease)}
.mode-chip b{font-style:italic;font-weight:500;font-size:1.35rem;color:var(--accent);min-width:1.1rem}
.mode-chip:hover span{border-color:var(--ink-3);transform:translateY(-1px)}
.mode-chip input:checked+span{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.mode-chip input:checked+span b{color:var(--mark)}
.mode-chip input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}

.more{border-top:1px solid var(--rule);padding-top:.8rem}
.more summary{cursor:pointer;font-family:var(--mono);font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2)}
.more[open]{display:grid;gap:1rem}
.form-error{margin:0;color:var(--danger);font-weight:500}
.actions{display:flex;flex-wrap:wrap;gap:.75rem}

.panel-output{background:var(--card);border:1px solid var(--rule);padding:clamp(1rem,3vw,2rem);min-height:24rem;display:flex;flex-direction:column}
@media (min-width:1080px){.panel-output{position:sticky;top:1rem;max-height:calc(100vh - 2rem);overflow:auto}}
.output-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;border-bottom:1px solid var(--rule);padding-bottom:.8rem;margin-bottom:1rem}
.output-head .panel-title{margin:0}
.output-tools{display:flex;flex-wrap:wrap;gap:.4rem}
.status{font-family:var(--mono);font-size:.78rem;color:var(--ink-3);margin:0 0 1rem}
.status.working::before{content:"";display:inline-block;width:.55rem;height:.55rem;border-radius:50%;background:var(--accent);margin-right:.5rem;animation:pulse 1.2s ease-in-out infinite}
.status.warn{color:var(--danger)}
.status.ok{color:var(--ok)}
@keyframes pulse{50%{opacity:.25}}
@media (prefers-reduced-motion:reduce){.status.working::before{animation:none}*{transition:none!important}}

.result{max-width:46rem;overflow-wrap:break-word}
.result:focus{outline:none}
.result h1,.result h2,.result h3,.result h4{font-weight:600;line-height:1.2;margin:1.6em 0 .5em}
.result h1{font-size:1.7rem}.result h2{font-size:1.4rem;border-top:1px solid var(--rule);padding-top:1em}.result h3{font-size:1.15rem}
.result>:first-child{margin-top:0;border-top:0;padding-top:0}
.result p{margin:0 0 1em}
.result ul,.result ol{padding-left:1.4rem;margin:0 0 1em}
.result li{margin:.25em 0}
.result blockquote{margin:0 0 1em;padding:.4em 1em;border-left:3px solid var(--accent);background:var(--accent-soft);font-style:italic}
.result code{font-family:var(--mono);font-size:.85em;background:var(--paper-2);padding:.05em .3em}
.result table{border-collapse:collapse;width:100%;margin:0 0 1em;font-size:.92rem;display:block;overflow-x:auto}
.result th,.result td{border:1px solid var(--rule);padding:.4em .6em;text-align:left;vertical-align:top}
.result hr{border:0;border-top:1px solid var(--rule);margin:1.5em 0}

.foot{padding:1.5rem var(--gutter);border-top:1px solid var(--rule);font-family:var(--mono);font-size:.7rem;color:var(--ink-3);text-align:center}